Home / 12,186,550.72-16,789,175.57-8,509,643.30

Finding the Fourth Proportional to 12,186,550.72, 16,789,175.57 and 8,509,643.30

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Solution

The fourth proportional to 12,186,550.72, 16,789,175.57 and 8,509,643.30 is: 11,723,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186,550.72 : 16,789,175.57 = 8,509,643.30 : x
  2. Step 2: Convert to fraction form
    12,186,550.72/16,789,175.57 = 8,509,643.30/x
  3. Step 3: Cross multiply
    12,186,550.72x = 16,789,175.57 × 8,509,643.30
  4. Step 4: Simplify right side
    12,186,550.72x = 142,869,895,465,021.25
  5. Step 5: Solve for x
    x = 142,869,895,465,021.25/12,186,550.72
  6. Step 6: Final answer
    x = 11,723,571.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.